X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/b50b2c97b3a8cf71aaecdcea6321433d576852a9..6407057398e86db934188e7527a21f09cce4e96b:/apt-pkg/packagemanager.cc diff --git a/apt-pkg/packagemanager.cc b/apt-pkg/packagemanager.cc index e3504f8bf..b0dd43629 100644 --- a/apt-pkg/packagemanager.cc +++ b/apt-pkg/packagemanager.cc @@ -1,6 +1,6 @@ // -*- mode: cpp; mode: fold -*- // Description /*{{{*/ -// $Id: packagemanager.cc,v 1.2 1998/07/09 05:41:12 jgg Exp $ +// $Id: packagemanager.cc,v 1.30 2003/04/27 03:04:15 doogie Exp $ /* ###################################################################### Package Manager - Abstacts the package manager @@ -14,22 +14,33 @@ /*}}}*/ // Include Files /*{{{*/ #ifdef __GNUG__ -#pragma implementation "pkglib/packagemanager.h" +#pragma implementation "apt-pkg/packagemanager.h" #endif -#include -#include -#include -#include -#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include /*}}}*/ +using namespace std; + // PM::PackageManager - Constructor /*{{{*/ // --------------------------------------------------------------------- /* */ -pkgPackageManager::pkgPackageManager(pkgDepCache &Cache) : Cache(Cache) +pkgPackageManager::pkgPackageManager(pkgDepCache *pCache) : Cache(*pCache) { FileNames = new string[Cache.Head().PackageCount]; List = 0; + Debug = _config->FindB("Debug::pkgPackageManager",false); } /*}}}*/ // PM::PackageManager - Destructor /*{{{*/ @@ -41,36 +52,134 @@ pkgPackageManager::~pkgPackageManager() delete [] FileNames; } /*}}}*/ +// PM::GetArchives - Queue the archives for download /*{{{*/ +// --------------------------------------------------------------------- +/* */ +bool pkgPackageManager::GetArchives(pkgAcquire *Owner,pkgSourceList *Sources, + pkgRecords *Recs) +{ + if (CreateOrderList() == false) + return false; + + if (List->OrderUnpack() == false) + return _error->Error("Internal ordering error"); + + for (pkgOrderList::iterator I = List->begin(); I != List->end(); I++) + { + PkgIterator Pkg(Cache,*I); + FileNames[Pkg->ID] = string(); + + // Skip packages to erase + if (Cache[Pkg].Delete() == true) + continue; + + // Skip Packages that need configure only. + if (Pkg.State() == pkgCache::PkgIterator::NeedsConfigure && + Cache[Pkg].Keep() == true) + continue; + + // Skip already processed packages + if (List->IsNow(Pkg) == false) + continue; + + new pkgAcqArchive(Owner,Sources,Recs,Cache[Pkg].InstVerIter(Cache), + FileNames[Pkg->ID]); + } + + return true; +} + /*}}}*/ // PM::FixMissing - Keep all missing packages /*{{{*/ // --------------------------------------------------------------------- /* This is called to correct the installation when packages could not be downloaded. */ bool pkgPackageManager::FixMissing() -{ - unsigned char *Touch = new unsigned char[Cache.Head().PackageCount]; +{ + pkgProblemResolver Resolve(&Cache); + List->SetFileList(FileNames); + + bool Bad = false; for (PkgIterator I = Cache.PkgBegin(); I.end() == false; I++) { - // Create the status list that ResolveConflicts needs - if ((Cache[I].DepState & pkgDepCache::DepNowMin) == pkgDepCache::DepNowMin) - Touch[I->ID] = (1 << 0) | (1 << 1); - else - Touch[I->ID] = 1 << 1; - - if (Cache[I].Keep() == true) - continue; - if (FileNames[I->ID].empty() == false || Cache[I].Delete() == true) + if (List->IsMissing(I) == false) continue; - Cache.MarkKeep(I); + + // Okay, this file is missing and we need it. Mark it for keep + Bad = true; + Cache.MarkKeep(I, false, false); } + + // We have to empty the list otherwise it will not have the new changes + delete List; + List = 0; + + if (Bad == false) + return true; // Now downgrade everything that is broken - Cache.ResolveConflicts(Touch); - delete [] Touch; - - return Cache.BrokenCount() == 0; + return Resolve.ResolveByKeep() == true && Cache.BrokenCount() == 0; } /*}}}*/ +// PM::CreateOrderList - Create the ordering class /*{{{*/ +// --------------------------------------------------------------------- +/* This populates the ordering list with all the packages that are + going to change. */ +bool pkgPackageManager::CreateOrderList() +{ + if (List != 0) + return true; + + delete List; + List = new pkgOrderList(&Cache); + + bool NoImmConfigure = !_config->FindB("APT::Immediate-Configure",true); + + // Generate the list of affected packages and sort it + for (PkgIterator I = Cache.PkgBegin(); I.end() == false; I++) + { + // Ignore no-version packages + if (I->VersionList == 0) + continue; + + // Mark the package and its dependends for immediate configuration + if (((I->Flags & pkgCache::Flag::Essential) == pkgCache::Flag::Essential || + (I->Flags & pkgCache::Flag::Important) == pkgCache::Flag::Important) && + NoImmConfigure == false) + { + List->Flag(I,pkgOrderList::Immediate); + + // Look for other packages to make immediate configurea + if (Cache[I].InstallVer != 0) + for (DepIterator D = Cache[I].InstVerIter(Cache).DependsList(); + D.end() == false; D++) + if (D->Type == pkgCache::Dep::Depends || D->Type == pkgCache::Dep::PreDepends) + List->Flag(D.TargetPkg(),pkgOrderList::Immediate); + + // And again with the current version. + if (I->CurrentVer != 0) + for (DepIterator D = I.CurrentVer().DependsList(); + D.end() == false; D++) + if (D->Type == pkgCache::Dep::Depends || D->Type == pkgCache::Dep::PreDepends) + List->Flag(D.TargetPkg(),pkgOrderList::Immediate); + } + + // Not interesting + if ((Cache[I].Keep() == true || + Cache[I].InstVerIter(Cache) == I.CurrentVer()) && + I.State() == pkgCache::PkgIterator::NeedsNothing && + (Cache[I].iFlags & pkgDepCache::ReInstall) != pkgDepCache::ReInstall && + (I.Purge() != false || Cache[I].Mode != pkgDepCache::ModeDelete || + (Cache[I].iFlags & pkgDepCache::Purge) != pkgDepCache::Purge)) + continue; + + // Append it to the list + List->push_back(I); + } + + return true; +} + /*}}}*/ // PM::DepAlwaysTrue - Returns true if this dep is irrelevent /*{{{*/ // --------------------------------------------------------------------- /* The restriction on provides is to eliminate the case when provides @@ -95,21 +204,25 @@ bool pkgPackageManager::CheckRConflicts(PkgIterator Pkg,DepIterator D, { for (;D.end() == false; D++) { - if (D->Type != pkgCache::Dep::Conflicts) + if (D->Type != pkgCache::Dep::Conflicts && + D->Type != pkgCache::Dep::Obsoletes) + continue; + + // The package hasnt been changed + if (List->IsNow(Pkg) == false) continue; - if (D.ParentPkg() == Pkg) + // Ignore self conflicts, ignore conflicts from irrelevent versions + if (D.ParentPkg() == Pkg || D.ParentVer() != D.ParentPkg().CurrentVer()) continue; - if (pkgCheckDep(D.TargetVer(),Ver,D->CompareOp) == false) + if (Cache.VS().CheckDep(Ver,D->CompareOp,D.TargetVer()) == false) continue; - if (List->IsNow(Pkg) == false) - continue; - if (EarlyRemove(D.ParentPkg()) == false) - return false; - } + return _error->Error("Reverse conflicts early remove for package '%s' failed", + Pkg.Name()); + } return true; } /*}}}*/ @@ -119,7 +232,7 @@ bool pkgPackageManager::CheckRConflicts(PkgIterator Pkg,DepIterator D, that the final configuration is valid. */ bool pkgPackageManager::ConfigureAll() { - pkgOrderList OList(Cache); + pkgOrderList OList(&Cache); // Populate the order list for (pkgOrderList::iterator I = List->begin(); I != List->end(); I++) @@ -150,14 +263,14 @@ bool pkgPackageManager::ConfigureAll() of it's dependents. */ bool pkgPackageManager::SmartConfigure(PkgIterator Pkg) { - pkgOrderList OList(Cache); + pkgOrderList OList(&Cache); if (DepAdd(OList,Pkg) == false) return false; if (OList.OrderConfigure() == false) return false; - + // Perform the configuring for (pkgOrderList::iterator I = OList.begin(); I != OList.end(); I++) { @@ -187,8 +300,7 @@ bool pkgPackageManager::DepAdd(pkgOrderList &OList,PkgIterator Pkg,int Depth) return true; if (List->IsFlag(Pkg,pkgOrderList::UnPacked) == false) return false; - - + // Put the package on the list OList.push_back(Pkg); OList.Flag(Pkg,pkgOrderList::Added); @@ -213,7 +325,7 @@ bool pkgPackageManager::DepAdd(pkgOrderList &OList,PkgIterator Pkg,int Depth) if (Bad == false) continue; - Version **VList = D.AllTargets(); + SPtrArray VList = D.AllTargets(); for (Version **I = VList; *I != 0 && Bad == true; I++) { VerIterator Ver(Cache,*I); @@ -231,12 +343,12 @@ bool pkgPackageManager::DepAdd(pkgOrderList &OList,PkgIterator Pkg,int Depth) if (Cache[Pkg].InstallVer != *I || (Cache[Pkg].Keep() == true && Pkg.State() == PkgIterator::NeedsNothing)) continue; + if (List->IsFlag(Pkg,pkgOrderList::UnPacked) == true) Bad = !DepAdd(OList,Pkg,Depth); if (List->IsFlag(Pkg,pkgOrderList::Configured) == true) Bad = false; } - delete [] VList; } if (Bad == true) @@ -267,6 +379,32 @@ bool pkgPackageManager::EarlyRemove(PkgIterator Pkg) // Woops, it will not be re-installed! if (List->IsFlag(Pkg,pkgOrderList::InList) == false) return false; + + // Essential packages get special treatment + bool IsEssential = false; + if ((Pkg->Flags & pkgCache::Flag::Essential) != 0) + IsEssential = true; + + /* Check for packages that are the dependents of essential packages and + promote them too */ + if (Pkg->CurrentVer != 0) + { + for (DepIterator D = Pkg.RevDependsList(); D.end() == false && + IsEssential == false; D++) + if (D->Type == pkgCache::Dep::Depends || D->Type == pkgCache::Dep::PreDepends) + if ((D.ParentPkg()->Flags & pkgCache::Flag::Essential) != 0) + IsEssential = true; + } + + if (IsEssential == true) + { + if (_config->FindB("APT::Force-LoopBreak",false) == false) + return _error->Error(_("This installation run will require temporarily " + "removing the essential package %s due to a " + "Conflicts/Pre-Depends loop. This is often bad, " + "but if you really want to do it, activate the " + "APT::Force-LoopBreak option."),Pkg.Name()); + } bool Res = SmartRemove(Pkg); if (Cache[Pkg].Delete() == false) @@ -284,7 +422,7 @@ bool pkgPackageManager::SmartRemove(PkgIterator Pkg) return true; List->Flag(Pkg,pkgOrderList::Configured,pkgOrderList::States); - return Remove(Pkg); + return Remove(Pkg,(Cache[Pkg].iFlags & pkgDepCache::Purge) == pkgDepCache::Purge); } /*}}}*/ // PM::SmartUnPack - Install helper /*{{{*/ @@ -299,19 +437,24 @@ bool pkgPackageManager::SmartUnPack(PkgIterator Pkg) List->Flag(Pkg,pkgOrderList::UnPacked,pkgOrderList::States); if (List->IsFlag(Pkg,pkgOrderList::Immediate) == true) if (SmartConfigure(Pkg) == false) - return _error->Error("Internal Error, Could not perform immediate configuraton"); + return _error->Error("Internal Error, Could not perform immediate configuration (1) on %s",Pkg.Name()); return true; } - + /* See if this packages install version has any predependencies that are not met by 'now' packages. */ for (DepIterator D = Cache[Pkg].InstVerIter(Cache).DependsList(); - D.end() == false; D++) + D.end() == false; ) { - if (D->Type == pkgCache::Dep::PreDepends) + // Compute a single dependency element (glob or) + pkgCache::DepIterator Start; + pkgCache::DepIterator End; + D.GlobOr(Start,End); + + while (End->Type == pkgCache::Dep::PreDepends) { // Look for possible ok targets. - Version **VList = D.AllTargets(); + SPtrArray VList = Start.AllTargets(); bool Bad = true; for (Version **I = VList; *I != 0 && Bad == true; I++) { @@ -340,20 +483,28 @@ bool pkgPackageManager::SmartUnPack(PkgIterator Pkg) Bad = !SmartConfigure(Pkg); } - - delete [] VList; - - if (Bad == true) - return _error->Error("Internal Error, Couldn't configure a pre-depend"); - continue; + /* If this or element did not match then continue on to the + next or element until a matching element is found */ + if (Bad == true) + { + // This triggers if someone make a pre-depends/depend loop. + if (Start == End) + return _error->Error("Couldn't configure pre-depend %s for %s, " + "probably a dependency cycle.", + End.TargetPkg().Name(),Pkg.Name()); + Start++; + } + else + break; } - if (D->Type == pkgCache::Dep::Conflicts) + if (End->Type == pkgCache::Dep::Conflicts || + End->Type == pkgCache::Dep::Obsoletes) { /* Look for conflicts. Two packages that are both in the install state cannot conflict so we don't check.. */ - Version **VList = D.AllTargets(); + SPtrArray VList = End.AllTargets(); for (Version **I = VList; *I != 0; I++) { VerIterator Ver(Cache,*I); @@ -366,13 +517,14 @@ bool pkgPackageManager::SmartUnPack(PkgIterator Pkg) return _error->Error("Internal Error, Could not early remove %s",Pkg.Name()); } } - delete [] VList; } } // Check for reverse conflicts. - CheckRConflicts(Pkg,Pkg.RevDependsList(), - Cache[Pkg].InstVerIter(Cache).VerStr()); + if (CheckRConflicts(Pkg,Pkg.RevDependsList(), + Cache[Pkg].InstVerIter(Cache).VerStr()) == false) + return false; + for (PrvIterator P = Cache[Pkg].InstVerIter(Cache).ProvidesList(); P.end() == false; P++) CheckRConflicts(Pkg,P.ParentPkg().RevDependsList(),P.ProvideVersion()); @@ -385,7 +537,7 @@ bool pkgPackageManager::SmartUnPack(PkgIterator Pkg) // Perform immedate configuration of the package. if (List->IsFlag(Pkg,pkgOrderList::Immediate) == true) if (SmartConfigure(Pkg) == false) - return _error->Error("Internal Error, Could not perform immediate configuraton"); + return _error->Error("Internal Error, Could not perform immediate configuration (2) on %s",Pkg.Name()); return true; } @@ -393,84 +545,97 @@ bool pkgPackageManager::SmartUnPack(PkgIterator Pkg) // PM::OrderInstall - Installation ordering routine /*{{{*/ // --------------------------------------------------------------------- /* */ -bool pkgPackageManager::OrderInstall() +pkgPackageManager::OrderResult pkgPackageManager::OrderInstall() { - delete List; - List = new pkgOrderList(Cache); + if (CreateOrderList() == false) + return Failed; + + Reset(); - // Generate the list of affected packages and sort it - for (PkgIterator I = Cache.PkgBegin(); I.end() == false; I++) + if (Debug == true) + clog << "Begining to order" << endl; + + if (List->OrderUnpack(FileNames) == false) { - // Consider all depends - if ((I->Flags & pkgCache::Flag::Essential) == pkgCache::Flag::Essential) - { - List->Flag(I,pkgOrderList::Immediate); - if (Cache[I].InstallVer != 0) - for (DepIterator D = Cache[I].InstVerIter(Cache).DependsList(); - D.end() == false; D++) - if (D->Type == pkgCache::Dep::Depends || D->Type == pkgCache::Dep::PreDepends) - List->Flag(D.TargetPkg(),pkgOrderList::Immediate); - if (I->CurrentVer != 0) - for (DepIterator D = I.CurrentVer().DependsList(); - D.end() == false; D++) - if (D->Type == pkgCache::Dep::Depends || D->Type == pkgCache::Dep::PreDepends) - List->Flag(D.TargetPkg(),pkgOrderList::Immediate); - } - - // Not interesting - if ((Cache[I].Keep() == true || - Cache[I].InstVerIter(Cache) == I.CurrentVer()) && - I.State() == pkgCache::PkgIterator::NeedsNothing) - continue; - - // Append it to the list - List->push_back(I); - - if ((I->Flags & pkgCache::Flag::ImmediateConf) == pkgCache::Flag::ImmediateConf) - List->Flag(I,pkgOrderList::Immediate); + _error->Error("Internal ordering error"); + return Failed; } - if (List->OrderUnpack() == false) - return _error->Error("Internal ordering error"); + if (Debug == true) + clog << "Done ordering" << endl; + bool DoneSomething = false; for (pkgOrderList::iterator I = List->begin(); I != List->end(); I++) { PkgIterator Pkg(Cache,*I); + + if (List->IsNow(Pkg) == false) + { + if (Debug == true) + clog << "Skipping already done " << Pkg.Name() << endl; + continue; + } + + if (List->IsMissing(Pkg) == true) + { + if (Debug == true) + clog << "Sequence completed at " << Pkg.Name() << endl; + if (DoneSomething == false) + { + _error->Error("Internal Error, ordering was unable to handle the media swap"); + return Failed; + } + return Incomplete; + } // Sanity check - if (Cache[Pkg].Keep() == true && Pkg.State() == pkgCache::PkgIterator::NeedsNothing) - return _error->Error("Internal Error, trying to manipulate a kept package"); + if (Cache[Pkg].Keep() == true && + Pkg.State() == pkgCache::PkgIterator::NeedsNothing && + (Cache[Pkg].iFlags & pkgDepCache::ReInstall) != pkgDepCache::ReInstall) + { + _error->Error("Internal Error, trying to manipulate a kept package (%s)",Pkg.Name()); + return Failed; + } // Perform a delete or an install if (Cache[Pkg].Delete() == true) { if (SmartRemove(Pkg) == false) - return false; + return Failed; } else if (SmartUnPack(Pkg) == false) - return false; + return Failed; + DoneSomething = true; } // Final run through the configure phase if (ConfigureAll() == false) - return false; + return Failed; // Sanity check for (pkgOrderList::iterator I = List->begin(); I != List->end(); I++) + { if (List->IsFlag(*I,pkgOrderList::Configured) == false) - return _error->Error("Internal error, packages left unconfigured. %s", - PkgIterator(Cache,*I).Name()); - - return true; + { + _error->Error("Internal error, packages left unconfigured. %s", + PkgIterator(Cache,*I).Name()); + return Failed; + } + } + + return Completed; } /*}}}*/ // PM::DoInstall - Does the installation /*{{{*/ // --------------------------------------------------------------------- /* This uses the filenames in FileNames and the information in the DepCache to perform the installation of packages.*/ -bool pkgPackageManager::DoInstall() +pkgPackageManager::OrderResult pkgPackageManager::DoInstall(int statusFd) { - return OrderInstall() && Go(); + if(DoInstallPreFork() == Failed) + return Failed; + + return DoInstallPostFork(statusFd); } /*}}}*/